OUTER CV JOINT, CHECKING
It is necessary to disassemble the joint whenever replacing the grease or if the ball surfaces show wear or damage.
Removing
Scheme 138
Before disassembling mark ball hub position in relation to the ball cage and housing with an electric scriber or oil stone -arrow-.
Tilt ball hub and ball cage and remove balls one after another.
Turn cage until two cage windows -arrow- rest on joint body.
Scheme 139
Lift out cage with hub.
Swing a hub segment in a cage window.
Scheme 140
Fold hub out from cage.
Note. 6 balls for each joint belong to a tolerance group. Check stub axle, hub, cage and balls for small depressions (pitting build-up) and chafing. Excessive circumferential backlash in joint makes itself noticed via tip-in shock, in such cases joint should be replaced. Flattening and running marks of balls are no reason to replace joint.
Installing
Installation is the reverse of removal, with special attention to the following
Press quantity of grease specified in table into joint body.
- 90 mm diameter outer joint, grease quantities, refer to «FILLING JOINTS WITH GREASE»(/audi/tt/8j-2006-2010/remont/suspension-front/#front-suspension-roadster__filling-joints-with-grease) .
- 98 mm diameter outer joint, grease quantities, refer to «FILLING JOINTS WITH GREASE»(/audi/tt/8j-2006-2010/remont/suspension-front/#front-suspension-roadster__filling-joints-with-grease) .
Insert cage with hub into joint body.
Note. Cage must be installed laterally correct.
Press in opposing balls in sequence, during this, previous position of ball hub to ball cage and to joint body must be established again.
Install new circlip in shaft.
Distribute remaining grease in the joint boot.